115643190 has 64 divisors (see below), whose sum is σ = 303855552. Its totient is φ = 27993600.

The previous prime is 115643189. The next prime is 115643219. The reversal of 115643190 is 91346511.

It is a super-2 number, since 2×115643190² = 26746694786752200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21360 + ... + 26220.

It is an arithmetic number, because the mean of its divisors is an integer number (4747743).

Almost surely, 2^115643190 is an apocalyptic number.

115643190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 115643190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151927776).

115643190 is an abundant number, since it is smaller than the sum of its proper divisors (188212362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115643190 is a wasteful number, since it uses less digits than its factorization.

115643190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4945.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 115643190 is about 10753.7523683596. The cubic root of 115643190 is about 487.1993359721.

The spelling of 115643190 in words is "one hundred fifteen million, six hundred forty-three thousand, one hundred ninety".